Designed with the automotive sector and industrial applications in mind, this Einhell 1/2" drive socket set is impact rated and suitable for use with high torque impact wrenches as well as with many other power tools and hand tools. The set includes 11 metric hexagon sockets covering ranges from 10mm to 21mm, and an extension bar for additional reach whenever access is impeded. The tools in this kit are made made from maganese-phosphatised CrMo steel, which is significantly more resistant than conventional CrV steel and is able to withstand increased heavy duty load conditions during high torque fastening and unfastening jobs. Features and BenefitsContains 11 hexagon impact sockets and an extension barManganese-phosphatised CrMo steel for increased resistanceMetric sockets from 10mm to 21mmSuitable for high torques in the automotive sectorExtension is ideal for working in light alloy rimsCompatible with all 1/2" square drive tools, including 1/2" impact wrenchesRob